"My thoughts and prayers are with the families of these servicemen at this difficult time.
"My heart goes out to those affected, we will continue to pray for you. We owe a debt of gratitude to our brave soldiers who are the best in the world."
More top news
Stammering affects around 700,000 people in the UK
North east festivalgoers have been enjoying live music at Hardwick Hall this weekend, as part of popular music event Hardwick Live.
Olympic and Paralympic athletes have been taking part in park runs across the country today to encourage the nation to get active.